yuzu/src/video_core/renderer_vulkan/wrapper.h

// Copyright 2020 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.

#pragma once

#include <exception>
#include <iterator>
#include <limits>
#include <memory>
#include <optional>
#include <type_traits>
#include <utility>
#include <vector>

#define VK_NO_PROTOTYPES
#include <vulkan/vulkan.h>

#include "common/common_types.h"

namespace Vulkan::vk {

/**
 * Span for Vulkan arrays.
 * Based on std::span but optimized for array access instead of iterators.
 * Size returns uint32_t instead of size_t to ease interaction with Vulkan functions.
 */
template <typename T>
class Span {
public:
    /// Construct an empty span.
    constexpr Span() noexcept = default;

    /// Construct a span from a single element.
    constexpr Span(const T& value) noexcept : ptr{&value}, num{1} {}

    /// Construct a span from a range.
    template <typename Range>
    // requires std::data(const Range&)
    // requires std::size(const Range&)
    constexpr Span(const Range& range) : ptr{std::data(range)}, num{std::size(range)} {}

    /// Construct a span from a pointer and a size.
    /// This is inteded for subranges.
    constexpr Span(const T* ptr, std::size_t num) noexcept : ptr{ptr}, num{num} {}

    /// Returns the data pointer by the span.
    constexpr const T* data() const noexcept {
        return ptr;
    }

    /// Returns the number of elements in the span.
    constexpr u32 size() const noexcept {
        return static_cast<u32>(num);
    }

    /// Returns true when the span is empty.
    constexpr bool empty() const noexcept {
        return num == 0;
    }

    /// Returns a reference to the element in the passed index.
    /// @pre: index < size()
    constexpr const T& operator[](std::size_t index) const noexcept {
        return ptr[index];
    }

    /// Returns an iterator to the beginning of the span.
    constexpr const T* begin() const noexcept {
        return ptr;
    }

    /// Returns an iterator to the end of the span.
    constexpr const T* end() const noexcept {
        return ptr + num;
    }

private:
    const T* ptr = nullptr;
    std::size_t num = 0;
};

/// Vulkan exception generated from a VkResult.
class Exception final : public std::exception {
public:
    /// Construct the exception with a result.
    /// @pre result != VK_SUCCESS
    explicit Exception(VkResult result_) : result{result_} {}
    virtual ~Exception() = default;

    const char* what() const noexcept override;

private:
    VkResult result;
};

/// Converts a VkResult enum into a rodata string
const char* ToString(VkResult) noexcept;

/// Throws a Vulkan exception if result is not success.
inline void Check(VkResult result) {
    if (result != VK_SUCCESS) {
        throw Exception(result);
    }
}

/// Throws a Vulkan exception if result is an error.
/// @return result
inline VkResult Filter(VkResult result) {
    if (result < 0) {
        throw Exception(result);
    }
    return result;
}

/// Table holding Vulkan instance function pointers.
struct InstanceDispatch {
    PFN_vkGetInstanceProcAddr vkGetInstanceProcAddr;

    PFN_vkCreateInstance vkCreateInstance;
    PFN_vkDestroyInstance vkDestroyInstance;
    PFN_vkEnumerateInstanceExtensionProperties vkEnumerateInstanceExtensionProperties;

    PFN_vkCreateDebugUtilsMessengerEXT vkCreateDebugUtilsMessengerEXT;
    PFN_vkCreateDevice vkCreateDevice;
    PFN_vkDestroyDebugUtilsMessengerEXT vkDestroyDebugUtilsMessengerEXT;
    PFN_vkDestroyDevice vkDestroyDevice;
    PFN_vkDestroySurfaceKHR vkDestroySurfaceKHR;
    PFN_vkEnumerateDeviceExtensionProperties vkEnumerateDeviceExtensionProperties;
    PFN_vkEnumeratePhysicalDevices vkEnumeratePhysicalDevices;
    PFN_vkGetDeviceProcAddr vkGetDeviceProcAddr;
    PFN_vkGetPhysicalDeviceFeatures2KHR vkGetPhysicalDeviceFeatures2KHR;
    PFN_vkGetPhysicalDeviceFormatProperties vkGetPhysicalDeviceFormatProperties;
    PFN_vkGetPhysicalDeviceMemoryProperties vkGetPhysicalDeviceMemoryProperties;
    PFN_vkGetPhysicalDeviceProperties vkGetPhysicalDeviceProperties;
    PFN_vkGetPhysicalDeviceProperties2KHR vkGetPhysicalDeviceProperties2KHR;
    PFN_vkGetPhysicalDeviceQueueFamilyProperties vkGetPhysicalDeviceQueueFamilyProperties;
    PFN_vkGetPhysicalDeviceSurfaceCapabilitiesKHR vkGetPhysicalDeviceSurfaceCapabilitiesKHR;
    PFN_vkGetPhysicalDeviceSurfaceFormatsKHR vkGetPhysicalDeviceSurfaceFormatsKHR;
    PFN_vkGetPhysicalDeviceSurfacePresentModesKHR vkGetPhysicalDeviceSurfacePresentModesKHR;
    PFN_vkGetPhysicalDeviceSurfaceSupportKHR vkGetPhysicalDeviceSurfaceSupportKHR;
    PFN_vkGetSwapchainImagesKHR vkGetSwapchainImagesKHR;
    PFN_vkQueuePresentKHR vkQueuePresentKHR;
};

/// Table holding Vulkan device function pointers.
struct DeviceDispatch : public InstanceDispatch {
    PFN_vkAcquireNextImageKHR vkAcquireNextImageKHR;
    PFN_vkAllocateCommandBuffers vkAllocateCommandBuffers;
    PFN_vkAllocateDescriptorSets vkAllocateDescriptorSets;
    PFN_vkAllocateMemory vkAllocateMemory;
    PFN_vkBeginCommandBuffer vkBeginCommandBuffer;
    PFN_vkBindBufferMemory vkBindBufferMemory;
    PFN_vkBindImageMemory vkBindImageMemory;
    PFN_vkCmdBeginQuery vkCmdBeginQuery;
    PFN_vkCmdBeginRenderPass vkCmdBeginRenderPass;
    PFN_vkCmdBeginTransformFeedbackEXT vkCmdBeginTransformFeedbackEXT;
    PFN_vkCmdBindDescriptorSets vkCmdBindDescriptorSets;
    PFN_vkCmdBindIndexBuffer vkCmdBindIndexBuffer;
    PFN_vkCmdBindPipeline vkCmdBindPipeline;
    PFN_vkCmdBindTransformFeedbackBuffersEXT vkCmdBindTransformFeedbackBuffersEXT;
    PFN_vkCmdBindVertexBuffers vkCmdBindVertexBuffers;
    PFN_vkCmdBlitImage vkCmdBlitImage;
    PFN_vkCmdClearAttachments vkCmdClearAttachments;
    PFN_vkCmdCopyBuffer vkCmdCopyBuffer;
    PFN_vkCmdCopyBufferToImage vkCmdCopyBufferToImage;
    PFN_vkCmdCopyImage vkCmdCopyImage;
    PFN_vkCmdCopyImageToBuffer vkCmdCopyImageToBuffer;
    PFN_vkCmdDispatch vkCmdDispatch;
    PFN_vkCmdDraw vkCmdDraw;
    PFN_vkCmdDrawIndexed vkCmdDrawIndexed;
    PFN_vkCmdEndQuery vkCmdEndQuery;
    PFN_vkCmdEndRenderPass vkCmdEndRenderPass;
    PFN_vkCmdEndTransformFeedbackEXT vkCmdEndTransformFeedbackEXT;
    PFN_vkCmdFillBuffer vkCmdFillBuffer;
    PFN_vkCmdPipelineBarrier vkCmdPipelineBarrier;
    PFN_vkCmdPushConstants vkCmdPushConstants;
    PFN_vkCmdSetBlendConstants vkCmdSetBlendConstants;
    PFN_vkCmdSetCheckpointNV vkCmdSetCheckpointNV;
    PFN_vkCmdSetDepthBias vkCmdSetDepthBias;
    PFN_vkCmdSetDepthBounds vkCmdSetDepthBounds;
    PFN_vkCmdSetScissor vkCmdSetScissor;
    PFN_vkCmdSetStencilCompareMask vkCmdSetStencilCompareMask;
    PFN_vkCmdSetStencilReference vkCmdSetStencilReference;
    PFN_vkCmdSetStencilWriteMask vkCmdSetStencilWriteMask;
    PFN_vkCmdSetViewport vkCmdSetViewport;
    PFN_vkCreateBuffer vkCreateBuffer;
    PFN_vkCreateBufferView vkCreateBufferView;
    PFN_vkCreateCommandPool vkCreateCommandPool;
    PFN_vkCreateComputePipelines vkCreateComputePipelines;
    PFN_vkCreateDescriptorPool vkCreateDescriptorPool;
    PFN_vkCreateDescriptorSetLayout vkCreateDescriptorSetLayout;
    PFN_vkCreateDescriptorUpdateTemplateKHR vkCreateDescriptorUpdateTemplateKHR;
    PFN_vkCreateFence vkCreateFence;
    PFN_vkCreateFramebuffer vkCreateFramebuffer;
    PFN_vkCreateGraphicsPipelines vkCreateGraphicsPipelines;
    PFN_vkCreateImage vkCreateImage;
    PFN_vkCreateImageView vkCreateImageView;
    PFN_vkCreatePipelineLayout vkCreatePipelineLayout;
    PFN_vkCreateQueryPool vkCreateQueryPool;
    PFN_vkCreateRenderPass vkCreateRenderPass;
    PFN_vkCreateSampler vkCreateSampler;
    PFN_vkCreateSemaphore vkCreateSemaphore;
    PFN_vkCreateShaderModule vkCreateShaderModule;
    PFN_vkCreateSwapchainKHR vkCreateSwapchainKHR;
    PFN_vkDestroyBuffer vkDestroyBuffer;
    PFN_vkDestroyBufferView vkDestroyBufferView;
    PFN_vkDestroyCommandPool vkDestroyCommandPool;
    PFN_vkDestroyDescriptorPool vkDestroyDescriptorPool;
    PFN_vkDestroyDescriptorSetLayout vkDestroyDescriptorSetLayout;
    PFN_vkDestroyDescriptorUpdateTemplateKHR vkDestroyDescriptorUpdateTemplateKHR;
    PFN_vkDestroyFence vkDestroyFence;
    PFN_vkDestroyFramebuffer vkDestroyFramebuffer;
    PFN_vkDestroyImage vkDestroyImage;
    PFN_vkDestroyImageView vkDestroyImageView;
    PFN_vkDestroyPipeline vkDestroyPipeline;
    PFN_vkDestroyPipelineLayout vkDestroyPipelineLayout;
    PFN_vkDestroyQueryPool vkDestroyQueryPool;
    PFN_vkDestroyRenderPass vkDestroyRenderPass;
    PFN_vkDestroySampler vkDestroySampler;
    PFN_vkDestroySemaphore vkDestroySemaphore;
    PFN_vkDestroyShaderModule vkDestroyShaderModule;
    PFN_vkDestroySwapchainKHR vkDestroySwapchainKHR;
    PFN_vkDeviceWaitIdle vkDeviceWaitIdle;
    PFN_vkEndCommandBuffer vkEndCommandBuffer;
    PFN_vkFreeCommandBuffers vkFreeCommandBuffers;
    PFN_vkFreeDescriptorSets vkFreeDescriptorSets;
    PFN_vkFreeMemory vkFreeMemory;
    PFN_vkGetBufferMemoryRequirements vkGetBufferMemoryRequirements;
    PFN_vkGetDeviceQueue vkGetDeviceQueue;
    PFN_vkGetFenceStatus vkGetFenceStatus;
    PFN_vkGetImageMemoryRequirements vkGetImageMemoryRequirements;
    PFN_vkGetQueryPoolResults vkGetQueryPoolResults;
    PFN_vkGetQueueCheckpointDataNV vkGetQueueCheckpointDataNV;
    PFN_vkMapMemory vkMapMemory;
    PFN_vkQueueSubmit vkQueueSubmit;
    PFN_vkResetFences vkResetFences;
    PFN_vkResetQueryPoolEXT vkResetQueryPoolEXT;
    PFN_vkUnmapMemory vkUnmapMemory;
    PFN_vkUpdateDescriptorSetWithTemplateKHR vkUpdateDescriptorSetWithTemplateKHR;
    PFN_vkUpdateDescriptorSets vkUpdateDescriptorSets;
    PFN_vkWaitForFences vkWaitForFences;
};

/// Loads instance agnostic function pointers.
/// @return True on success, false on error.
bool Load(InstanceDispatch&) noexcept;

/// Loads instance function pointers.
/// @return True on success, false on error.
bool Load(VkInstance, InstanceDispatch&) noexcept;

} // namespace Vulkan::vk